Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Combination of cascade and pole changing Rheostat control Pole changing Cascade control Combination of cascade and pole changing Rheostat control Pole changing Cascade control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction _________ frequency is not common in low frequency traction system None of the listed here 16 Hz 25 Hz 40 Hz None of the listed here 16 Hz 25 Hz 40 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of locomotives the tractive power is provided by Single cylinder double acting steam engine Double cylinder, single acting steam engine Single stage steam turbine Double cylinder, double acting steam engine Single cylinder double acting steam engine Double cylinder, single acting steam engine Single stage steam turbine Double cylinder, double acting steam engine ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The friction at the track is proportional to Speed 1/speed 1/(speed)² None of the listed here Speed 1/speed 1/(speed)² None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to 5 10 20 15 5 10 20 15 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Overhead lines for power supply to tram cars are at a minimum height of 6 m 15 m 3 m 10 m 6 m 15 m 3 m 10 m ANSWER DOWNLOAD EXAMIANS APP
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